The application of computer image analysis in water toxicity tests

Abstract

Laboratory bioassay belongs to very important tools in environmental monitoring; biological assessment of water quality plays a fundamental role in whole system of water monitoring. The WFD requires the use of bioassay in assessing the threat of aquatic ecosystems from certain pollutants runoff into the aquatic environment. Classical methods of acute and chronic toxicity biotests are based on classical visual evaluation and observation of the negative effects of the selected toxicants impact. The usage of image analysis tool such as computer in water biomonitoring increases their sensitivity both in qualitative and quantitative assessment of negative effects from the selected toxicants. They make new bioassay very useful for the optimisation bioprocesses involved in the protection and control of aquatic ecosystems.